Memorex MM1740 - Manual (Page 6)

6
When there is no video input signal this monitor, following a time-out period, will
automatically switch to an OFF mode. This reduces the monitor's internal power supply
consumption. After the video input signal is restored, full power is restored and the display is
automatically redrawn. The appearance is similar to a “Screen Saver” feature except the
display is completely off. The display is restored by pressing a key on the keyboard, or
clicking the mouse.
TECHNICAL SUPPORT(FAQ)
Problem & Question Possible Solution
Power LED is not on Check if the Power Switch is in the ON position
Power Cord should be connected
No Plug & Play Check if the PC system is Plug & Play
compatible
Check if the Video Card is Plug & Play
compatible
Check if the D-15 plug pin of Video
Cable is bent
Picture is fuzzy Adjust the Contrast and Brightness Controls.
Picture bounces or a wave
pattern is present in the picture Move electrical devices that may cause electrical
interference.
The power LED is ON(orange)
but there's no video or no
picture.
Computer Power Switch should be in
the ON position.
Computer Video Card should be snugly
seated in its slot
Make sure monitor's video cable is properly connected to
the computer.
Inspect monitor's video cable and rnake sure none of the
pins are bent.
Make sure computer is operational by hitting the CAPS
LOCK key on the keyboard while observing the CAPS
LOCK LED. The LED should either turn ON or OFF after
hitting the CAPS LOCK key.
Missing one of the primary
colors(RED,GREEN,or BLUE)
Inspect the monitor's video cable and make sure that none
of the pins are bent.
Screen image is not centered or
sized properly.
Adjust pixel frequency(CLOCK) and PHASE or press
hot-key (AUTO)
Picture has color defects (white
does not look white) Adjust RGB color or select color temperature
Poor brightness or contrast The life time of the back-light is limited. In 50000 Hours
the luminance of the light has been reduced to half of its
original value. Please send the monitor to an authorized
service Agent for service.
Horizontal or vertical
disturbancies on the screen Use win 95/98/2000/XP shut-down mode Adjust CLOCK
and PHASE or perform hot-key(AUTO-key).
CLOCK(pixel frequency) controls the number of pixels scaned by one horizontal sweep. If
the frequency is not correct, the screen shows vertical stripes and the picture has not correct
width.
PHASE adjust the phase of the pixel clock signal. With a wrong phase adjustment the picture
has horizontal disturbances in light picture.
For PHASE and CLOCK adjustment use “dot-pattern”or win 95/98/2000/XP shut-down
mode pattern.